+ 1 2 3
d
d a
a
ab
b
ba
bababa
bababababab
aaaaaaaaaaaaaaaaaa
a 
aaaaaa c
aaa
aab
babab
a
aaa
abb
bb
ba
baab
a
ba
b
bbb
ba
b
a
ab
abab
aba
b
a
ab
aba
b
ba
ab
a
ab
a
ab
aba
b
ba
bab
v
pal
pit
pot
respite
a
ab
a
pit
% 3 4
% 123 3 1
+ 1 2
+ (1 2)
+ (1 2) 1
+ (% 1 2) 1
+ 1 2
add 1 2
+ 0.1
+ 0.1 1
+ 1 2
+ 1 2

+ 1 (add 2 3)

- 1 (add 2 3)

> 1 (add 2 3)

